./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 00f3978296386b105e45bba586b0df56f2d34b783492fc63d6fdcb596a8910f4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 19:53:12,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 19:53:12,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 19:53:12,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 19:53:12,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 19:53:12,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 19:53:12,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 19:53:12,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 19:53:12,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 19:53:12,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 19:53:12,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 19:53:12,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 19:53:12,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 19:53:12,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 19:53:12,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 19:53:12,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 19:53:12,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 19:53:12,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 19:53:12,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 19:53:12,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 19:53:12,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 19:53:12,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 19:53:12,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 19:53:12,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 19:53:12,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 19:53:12,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 19:53:12,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 19:53:12,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 19:53:12,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 19:53:12,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 19:53:12,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 19:53:12,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 19:53:12,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 19:53:12,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 19:53:12,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 19:53:12,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 19:53:12,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 19:53:12,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 19:53:12,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 19:53:12,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 19:53:12,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 19:53:12,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 19:53:12,195 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 19:53:12,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 19:53:12,196 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 19:53:12,196 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 19:53:12,197 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 19:53:12,198 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 19:53:12,198 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 19:53:12,198 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 19:53:12,199 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 19:53:12,199 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 19:53:12,200 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 19:53:12,200 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 19:53:12,201 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 19:53:12,201 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 19:53:12,201 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 19:53:12,202 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 19:53:12,202 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 19:53:12,202 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 19:53:12,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 19:53:12,204 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 19:53:12,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 19:53:12,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 19:53:12,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 19:53:12,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 19:53:12,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 19:53:12,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 19:53:12,206 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 19:53:12,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 19:53:12,207 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 19:53:12,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 19:53:12,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 19:53:12,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 19:53:12,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:53:12,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 19:53:12,209 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 19:53:12,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 19:53:12,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 19:53:12,210 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 19:53:12,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 19:53:12,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 19:53:12,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 19:53:12,212 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00f3978296386b105e45bba586b0df56f2d34b783492fc63d6fdcb596a8910f4 [2022-11-20 19:53:12,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 19:53:12,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 19:53:12,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 19:53:12,568 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 19:53:12,569 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 19:53:12,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/product-lines/email_spec1_product33.cil.c [2022-11-20 19:53:15,627 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 19:53:16,009 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 19:53:16,021 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/sv-benchmarks/c/product-lines/email_spec1_product33.cil.c [2022-11-20 19:53:16,051 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/data/3c4c82021/ed2b5f9620c14b608f34af2b9d6e8b7c/FLAG05a308e8f [2022-11-20 19:53:16,071 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/data/3c4c82021/ed2b5f9620c14b608f34af2b9d6e8b7c [2022-11-20 19:53:16,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 19:53:16,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 19:53:16,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 19:53:16,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 19:53:16,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 19:53:16,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:53:16" (1/1) ... [2022-11-20 19:53:16,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@121a3e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:53:16, skipping insertion in model container [2022-11-20 19:53:16,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:53:16" (1/1) ... [2022-11-20 19:53:16,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 19:53:16,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 19:53:16,425 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/sv-benchmarks/c/product-lines/email_spec1_product33.cil.c[1542,1555] [2022-11-20 19:53:16,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:53:17,007 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 19:53:17,025 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/sv-benchmarks/c/product-lines/email_spec1_product33.cil.c[1542,1555] [2022-11-20 19:53:17,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:53:17,234 INFO L208 MainTranslator]: Completed translation [2022-11-20 19:53:17,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:53:17 WrapperNode [2022-11-20 19:53:17,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 19:53:17,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 19:53:17,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 19:53:17,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 19:53:17,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:53:17" (1/1) ... [2022-11-20 19:53:17,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:53:17" (1/1) ... [2022-11-20 19:53:17,371 INFO L138 Inliner]: procedures = 134, calls = 228, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 1070 [2022-11-20 19:53:17,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 19:53:17,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 19:53:17,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 19:53:17,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 19:53:17,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:53:17" (1/1) ... [2022-11-20 19:53:17,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:53:17" (1/1) ... [2022-11-20 19:53:17,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:53:17" (1/1) ... [2022-11-20 19:53:17,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:53:17" (1/1) ... [2022-11-20 19:53:17,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:53:17" (1/1) ... [2022-11-20 19:53:17,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:53:17" (1/1) ... [2022-11-20 19:53:17,421 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:53:17" (1/1) ... [2022-11-20 19:53:17,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:53:17" (1/1) ... [2022-11-20 19:53:17,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 19:53:17,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 19:53:17,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 19:53:17,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 19:53:17,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:53:17" (1/1) ... [2022-11-20 19:53:17,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:53:17,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:53:17,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 19:53:17,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 19:53:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-20 19:53:17,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-20 19:53:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-20 19:53:17,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-20 19:53:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-20 19:53:17,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-20 19:53:17,542 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-20 19:53:17,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-20 19:53:17,543 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-20 19:53:17,543 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-20 19:53:17,543 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-20 19:53:17,543 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-20 19:53:17,543 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-20 19:53:17,544 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-20 19:53:17,544 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-20 19:53:17,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-20 19:53:17,544 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-20 19:53:17,544 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-20 19:53:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-20 19:53:17,545 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-20 19:53:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-20 19:53:17,545 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-20 19:53:17,546 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-20 19:53:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-20 19:53:17,546 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-20 19:53:17,546 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-20 19:53:17,546 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-20 19:53:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 19:53:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-20 19:53:17,547 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-20 19:53:17,547 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-20 19:53:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-20 19:53:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-20 19:53:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-20 19:53:17,548 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-20 19:53:17,548 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-20 19:53:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-20 19:53:17,549 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-20 19:53:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-20 19:53:17,549 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-20 19:53:17,549 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-20 19:53:17,550 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-20 19:53:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-20 19:53:17,550 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-20 19:53:17,550 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-20 19:53:17,550 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-20 19:53:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-20 19:53:17,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-20 19:53:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 19:53:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-20 19:53:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-20 19:53:17,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 19:53:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 19:53:17,804 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 19:53:17,806 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 19:53:18,824 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 19:53:19,409 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 19:53:19,409 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 19:53:19,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:53:19 BoogieIcfgContainer [2022-11-20 19:53:19,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 19:53:19,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 19:53:19,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 19:53:19,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 19:53:19,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:53:16" (1/3) ... [2022-11-20 19:53:19,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1a0dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:53:19, skipping insertion in model container [2022-11-20 19:53:19,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:53:17" (2/3) ... [2022-11-20 19:53:19,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1a0dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:53:19, skipping insertion in model container [2022-11-20 19:53:19,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:53:19" (3/3) ... [2022-11-20 19:53:19,438 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product33.cil.c [2022-11-20 19:53:19,458 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 19:53:19,459 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 19:53:19,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 19:53:19,551 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74f857a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 19:53:19,552 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 19:53:19,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 212 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 127 states have internal predecessors, (161), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-20 19:53:19,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-20 19:53:19,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:53:19,581 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:53:19,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:53:19,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:53:19,591 INFO L85 PathProgramCache]: Analyzing trace with hash -336845607, now seen corresponding path program 1 times [2022-11-20 19:53:19,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:53:19,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348694402] [2022-11-20 19:53:19,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:53:19,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:53:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:53:20,010 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 19:53:20,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:53:20,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348694402] [2022-11-20 19:53:20,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348694402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:53:20,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:53:20,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 19:53:20,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90882475] [2022-11-20 19:53:20,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:53:20,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 19:53:20,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:53:20,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 19:53:20,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 19:53:20,054 INFO L87 Difference]: Start difference. First operand has 212 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 127 states have internal predecessors, (161), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 19:53:20,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:53:20,206 INFO L93 Difference]: Finished difference Result 341 states and 452 transitions. [2022-11-20 19:53:20,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 19:53:20,221 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2022-11-20 19:53:20,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:53:20,234 INFO L225 Difference]: With dead ends: 341 [2022-11-20 19:53:20,234 INFO L226 Difference]: Without dead ends: 209 [2022-11-20 19:53:20,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 19:53:20,243 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 19:53:20,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 244 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 19:53:20,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-11-20 19:53:20,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2022-11-20 19:53:20,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 121 states have (on average 1.28099173553719) internal successors, (155), 124 states have internal predecessors, (155), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-20 19:53:20,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 280 transitions. [2022-11-20 19:53:20,333 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 280 transitions. Word has length 64 [2022-11-20 19:53:20,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:53:20,337 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 280 transitions. [2022-11-20 19:53:20,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 19:53:20,342 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 280 transitions. [2022-11-20 19:53:20,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-20 19:53:20,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:53:20,349 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:53:20,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 19:53:20,349 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:53:20,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:53:20,350 INFO L85 PathProgramCache]: Analyzing trace with hash -525117704, now seen corresponding path program 1 times [2022-11-20 19:53:20,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:53:20,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182098373] [2022-11-20 19:53:20,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:53:20,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:53:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:53:20,774 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 19:53:20,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:53:20,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182098373] [2022-11-20 19:53:20,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182098373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:53:20,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:53:20,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 19:53:20,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472474251] [2022-11-20 19:53:20,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:53:20,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 19:53:20,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:53:20,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 19:53:20,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 19:53:20,781 INFO L87 Difference]: Start difference. First operand 209 states and 280 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 19:53:20,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:53:20,984 INFO L93 Difference]: Finished difference Result 337 states and 440 transitions. [2022-11-20 19:53:20,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 19:53:20,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2022-11-20 19:53:20,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:53:20,994 INFO L225 Difference]: With dead ends: 337 [2022-11-20 19:53:20,994 INFO L226 Difference]: Without dead ends: 211 [2022-11-20 19:53:21,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 19:53:21,005 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 0 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 19:53:21,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 481 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 19:53:21,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-11-20 19:53:21,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-11-20 19:53:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 123 states have (on average 1.2764227642276422) internal successors, (157), 126 states have internal predecessors, (157), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-20 19:53:21,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2022-11-20 19:53:21,047 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 65 [2022-11-20 19:53:21,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:53:21,049 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2022-11-20 19:53:21,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 19:53:21,049 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2022-11-20 19:53:21,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-20 19:53:21,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:53:21,059 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:53:21,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 19:53:21,059 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:53:21,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:53:21,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1878360945, now seen corresponding path program 1 times [2022-11-20 19:53:21,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:53:21,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359830417] [2022-11-20 19:53:21,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:53:21,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:53:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:53:21,200 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 19:53:21,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:53:21,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359830417] [2022-11-20 19:53:21,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359830417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:53:21,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:53:21,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 19:53:21,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113614696] [2022-11-20 19:53:21,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:53:21,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 19:53:21,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:53:21,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 19:53:21,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 19:53:21,204 INFO L87 Difference]: Start difference. First operand 211 states and 282 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 19:53:21,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:53:21,344 INFO L93 Difference]: Finished difference Result 452 states and 623 transitions. [2022-11-20 19:53:21,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 19:53:21,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2022-11-20 19:53:21,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:53:21,347 INFO L225 Difference]: With dead ends: 452 [2022-11-20 19:53:21,347 INFO L226 Difference]: Without dead ends: 259 [2022-11-20 19:53:21,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 19:53:21,350 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 57 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 19:53:21,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 502 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 19:53:21,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-11-20 19:53:21,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 254. [2022-11-20 19:53:21,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 155 states have (on average 1.3548387096774193) internal successors, (210), 158 states have internal predecessors, (210), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-20 19:53:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 357 transitions. [2022-11-20 19:53:21,370 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 357 transitions. Word has length 70 [2022-11-20 19:53:21,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:53:21,371 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 357 transitions. [2022-11-20 19:53:21,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 19:53:21,371 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 357 transitions. [2022-11-20 19:53:21,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-20 19:53:21,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:53:21,373 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:53:21,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 19:53:21,373 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:53:21,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:53:21,374 INFO L85 PathProgramCache]: Analyzing trace with hash 320965469, now seen corresponding path program 1 times [2022-11-20 19:53:21,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:53:21,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559027727] [2022-11-20 19:53:21,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:53:21,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:53:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:53:21,620 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 19:53:21,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:53:21,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559027727] [2022-11-20 19:53:21,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559027727] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 19:53:21,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999772730] [2022-11-20 19:53:21,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:53:21,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 19:53:21,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:53:21,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 19:53:21,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 19:53:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:53:21,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 19:53:21,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:53:22,047 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 19:53:22,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 19:53:22,145 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 19:53:22,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999772730] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 19:53:22,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1580129659] [2022-11-20 19:53:22,175 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-20 19:53:22,175 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 19:53:22,179 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 19:53:22,184 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 19:53:22,185 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 19:53:57,498 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-20 19:53:57,973 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-20 19:53:58,417 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 19:54:42,590 WARN L233 SmtUtils]: Spent 8.07s on a formula simplification. DAG size of input: 490 DAG size of output: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:54:48,397 WARN L233 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 502 DAG size of output: 312 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:54:55,119 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 512 DAG size of output: 289 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:55:07,273 WARN L233 SmtUtils]: Spent 11.77s on a formula simplification. DAG size of input: 592 DAG size of output: 349 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:55:29,940 WARN L233 SmtUtils]: Spent 22.25s on a formula simplification. DAG size of input: 594 DAG size of output: 467 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:55:52,563 WARN L233 SmtUtils]: Spent 22.24s on a formula simplification. DAG size of input: 593 DAG size of output: 468 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:56:14,949 WARN L233 SmtUtils]: Spent 21.94s on a formula simplification. DAG size of input: 591 DAG size of output: 466 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:56:20,585 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 549 DAG size of output: 328 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:56:20,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1580129659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:56:20,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 19:56:20,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 26 [2022-11-20 19:56:20,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937811818] [2022-11-20 19:56:20,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:56:20,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 19:56:20,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:56:20,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 19:56:20,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2022-11-20 19:56:20,596 INFO L87 Difference]: Start difference. First operand 254 states and 357 transitions. Second operand has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-20 19:56:35,529 WARN L233 SmtUtils]: Spent 10.30s on a formula simplification. DAG size of input: 575 DAG size of output: 341 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:56:46,949 WARN L233 SmtUtils]: Spent 11.10s on a formula simplification. DAG size of input: 582 DAG size of output: 411 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:56:57,525 WARN L233 SmtUtils]: Spent 10.26s on a formula simplification. DAG size of input: 573 DAG size of output: 407 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:57:06,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:57:06,771 INFO L93 Difference]: Finished difference Result 591 states and 882 transitions. [2022-11-20 19:57:06,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 19:57:06,772 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 71 [2022-11-20 19:57:06,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:57:06,775 INFO L225 Difference]: With dead ends: 591 [2022-11-20 19:57:06,775 INFO L226 Difference]: Without dead ends: 355 [2022-11-20 19:57:06,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 177.4s TimeCoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-11-20 19:57:06,778 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 280 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 1835 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3362 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-20 19:57:06,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 3362 Invalid, 1859 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 1835 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-11-20 19:57:06,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-11-20 19:57:06,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 282. [2022-11-20 19:57:06,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 182 states have (on average 1.3681318681318682) internal successors, (249), 185 states have internal predecessors, (249), 74 states have call successors, (74), 25 states have call predecessors, (74), 25 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-20 19:57:06,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 396 transitions. [2022-11-20 19:57:06,990 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 396 transitions. Word has length 71 [2022-11-20 19:57:06,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:57:06,991 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 396 transitions. [2022-11-20 19:57:06,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-20 19:57:06,991 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 396 transitions. [2022-11-20 19:57:06,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 19:57:06,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:57:06,993 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:57:07,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 19:57:07,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 19:57:07,195 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:57:07,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:57:07,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1742945564, now seen corresponding path program 1 times [2022-11-20 19:57:07,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:57:07,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525021835] [2022-11-20 19:57:07,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:57:07,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:57:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:57:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 19:57:07,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:57:07,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525021835] [2022-11-20 19:57:07,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525021835] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 19:57:07,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333402894] [2022-11-20 19:57:07,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:57:07,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 19:57:07,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:57:07,369 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 19:57:07,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 19:57:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:57:07,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 19:57:07,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:57:07,765 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 19:57:07,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 19:57:07,856 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 19:57:07,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333402894] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 19:57:07,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [425758727] [2022-11-20 19:57:07,860 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2022-11-20 19:57:07,861 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 19:57:07,861 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 19:57:07,862 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 19:57:07,862 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 19:57:56,343 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-20 19:57:56,655 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 446 for LOIs [2022-11-20 19:57:56,966 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 19:58:39,881 WARN L233 SmtUtils]: Spent 7.57s on a formula simplification. DAG size of input: 490 DAG size of output: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:58:45,346 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 502 DAG size of output: 312 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:58:51,756 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 512 DAG size of output: 289 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:59:05,369 WARN L233 SmtUtils]: Spent 13.30s on a formula simplification. DAG size of input: 583 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:59:24,074 WARN L233 SmtUtils]: Spent 18.38s on a formula simplification. DAG size of input: 583 DAG size of output: 448 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:59:33,444 WARN L233 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 572 DAG size of output: 346 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:59:40,033 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 568 DAG size of output: 342 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:59:45,687 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 572 DAG size of output: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:59:51,376 WARN L233 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 574 DAG size of output: 331 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:59:58,696 WARN L233 SmtUtils]: Spent 6.87s on a formula simplification. DAG size of input: 584 DAG size of output: 343 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 19:59:58,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [425758727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:59:58,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 19:59:58,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2022-11-20 19:59:58,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263074962] [2022-11-20 19:59:58,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:59:58,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-20 19:59:58,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:59:58,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-20 19:59:58,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=769, Unknown=0, NotChecked=0, Total=870 [2022-11-20 19:59:58,705 INFO L87 Difference]: Start difference. First operand 282 states and 396 transitions. Second operand has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-11-20 20:00:05,503 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 396 DAG size of output: 366 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:00:20,007 WARN L233 SmtUtils]: Spent 14.28s on a formula simplification. DAG size of input: 547 DAG size of output: 412 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:00:52,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:00:52,400 INFO L93 Difference]: Finished difference Result 646 states and 961 transitions. [2022-11-20 20:00:52,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-20 20:00:52,401 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 77 [2022-11-20 20:00:52,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:00:52,404 INFO L225 Difference]: With dead ends: 646 [2022-11-20 20:00:52,404 INFO L226 Difference]: Without dead ends: 410 [2022-11-20 20:00:52,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 164.1s TimeCoverageRelationStatistics Valid=183, Invalid=1377, Unknown=0, NotChecked=0, Total=1560 [2022-11-20 20:00:52,407 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 191 mSDsluCounter, 3751 mSDsCounter, 0 mSdLazyCounter, 2456 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 4016 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-20 20:00:52,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 4016 Invalid, 2483 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 2456 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2022-11-20 20:00:52,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-11-20 20:00:52,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 326. [2022-11-20 20:00:52,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 223 states have (on average 1.4215246636771302) internal successors, (317), 227 states have internal predecessors, (317), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-11-20 20:00:52,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 468 transitions. [2022-11-20 20:00:52,647 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 468 transitions. Word has length 77 [2022-11-20 20:00:52,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:00:52,648 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 468 transitions. [2022-11-20 20:00:52,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2022-11-20 20:00:52,649 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 468 transitions. [2022-11-20 20:00:52,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-20 20:00:52,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:00:52,650 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:00:52,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-20 20:00:52,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:00:52,857 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:00:52,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:00:52,858 INFO L85 PathProgramCache]: Analyzing trace with hash -524455089, now seen corresponding path program 1 times [2022-11-20 20:00:52,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:00:52,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238772620] [2022-11-20 20:00:52,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:00:52,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:00:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:00:53,009 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:00:53,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:00:53,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238772620] [2022-11-20 20:00:53,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238772620] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:00:53,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367783182] [2022-11-20 20:00:53,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:00:53,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:00:53,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:00:53,011 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:00:53,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 20:00:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:00:53,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:00:53,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:00:53,388 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:00:53,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:00:53,468 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:00:53,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367783182] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:00:53,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1569346081] [2022-11-20 20:00:53,474 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2022-11-20 20:00:53,474 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:00:53,475 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:00:53,475 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:00:53,476 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:01:41,895 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 447 for LOIs [2022-11-20 20:01:42,337 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 238 for LOIs [2022-11-20 20:01:42,402 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 247 for LOIs [2022-11-20 20:01:42,525 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 237 for LOIs [2022-11-20 20:01:42,617 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-20 20:01:42,962 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:02:25,002 WARN L233 SmtUtils]: Spent 7.45s on a formula simplification. DAG size of input: 490 DAG size of output: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:02:30,271 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 502 DAG size of output: 312 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:02:56,563 WARN L233 SmtUtils]: Spent 19.78s on a formula simplification. DAG size of input: 636 DAG size of output: 514 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:03:13,979 WARN L233 SmtUtils]: Spent 17.08s on a formula simplification. DAG size of input: 623 DAG size of output: 494 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:03:33,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1569346081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:03:33,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-20 20:03:33,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [4, 4, 4] total 35 [2022-11-20 20:03:33,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219800839] [2022-11-20 20:03:33,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:03:33,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-20 20:03:33,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:03:33,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-20 20:03:33,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1080, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 20:03:33,227 INFO L87 Difference]: Start difference. First operand 326 states and 468 transitions. Second operand has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-11-20 20:03:43,900 WARN L233 SmtUtils]: Spent 8.65s on a formula simplification. DAG size of input: 622 DAG size of output: 363 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:03:51,558 WARN L233 SmtUtils]: Spent 7.32s on a formula simplification. DAG size of input: 585 DAG size of output: 385 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:04:08,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:04:08,869 INFO L93 Difference]: Finished difference Result 675 states and 1008 transitions. [2022-11-20 20:04:08,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-20 20:04:08,870 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 80 [2022-11-20 20:04:08,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:04:08,873 INFO L225 Difference]: With dead ends: 675 [2022-11-20 20:04:08,874 INFO L226 Difference]: Without dead ends: 439 [2022-11-20 20:04:08,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 126.7s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2022-11-20 20:04:08,877 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 201 mSDsluCounter, 4172 mSDsCounter, 0 mSdLazyCounter, 3792 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 4430 SdHoareTripleChecker+Invalid, 3808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:04:08,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 4430 Invalid, 3808 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [16 Valid, 3792 Invalid, 0 Unknown, 0 Unchecked, 18.4s Time] [2022-11-20 20:04:08,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-11-20 20:04:09,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 393. [2022-11-20 20:04:09,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 283 states have (on average 1.452296819787986) internal successors, (411), 288 states have internal predecessors, (411), 80 states have call successors, (80), 29 states have call predecessors, (80), 29 states have return successors, (79), 77 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-20 20:04:09,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 570 transitions. [2022-11-20 20:04:09,234 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 570 transitions. Word has length 80 [2022-11-20 20:04:09,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:04:09,234 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 570 transitions. [2022-11-20 20:04:09,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2022-11-20 20:04:09,235 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 570 transitions. [2022-11-20 20:04:09,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-20 20:04:09,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:04:09,237 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:04:09,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 20:04:09,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-20 20:04:09,448 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:04:09,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:04:09,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1962387665, now seen corresponding path program 1 times [2022-11-20 20:04:09,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:04:09,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490415285] [2022-11-20 20:04:09,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:09,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:04:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:09,676 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:04:09,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:04:09,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490415285] [2022-11-20 20:04:09,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490415285] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:04:09,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459436291] [2022-11-20 20:04:09,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:04:09,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:04:09,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:04:09,683 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:04:09,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279e41ec-7c3e-4d94-9d60-726b0e24841a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 20:04:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:04:10,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:04:10,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:04:10,088 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:04:10,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:04:10,178 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:04:10,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459436291] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:04:10,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [870411771] [2022-11-20 20:04:10,182 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2022-11-20 20:04:10,182 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:04:10,183 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:04:10,183 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:04:10,183 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:04:51,936 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 443 for LOIs [2022-11-20 20:04:52,233 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2022-11-20 20:04:52,533 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 273 for LOIs [2022-11-20 20:04:54,440 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 241 for LOIs [2022-11-20 20:04:54,480 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 275 for LOIs [2022-11-20 20:05:13,411 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 233 for LOIs [2022-11-20 20:05:13,449 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 253 for LOIs [2022-11-20 20:05:13,524 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 258 for LOIs [2022-11-20 20:05:13,569 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 477 for LOIs [2022-11-20 20:05:16,845 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:05:59,498 WARN L233 SmtUtils]: Spent 7.93s on a formula simplification. DAG size of input: 490 DAG size of output: 361 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:06:05,107 WARN L233 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 502 DAG size of output: 312 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:06:11,631 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 512 DAG size of output: 289 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:06:24,234 WARN L233 SmtUtils]: Spent 6.71s on a formula simplification. DAG size of input: 570 DAG size of output: 356 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:06:30,926 WARN L233 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 566 DAG size of output: 352 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:06:49,616 WARN L233 SmtUtils]: Spent 8.44s on a formula simplification. DAG size of input: 570 DAG size of output: 415 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)